Set assignments for each reviewer
Ability to allocate certain ranges of items to each reviewer at the start of the review process
Do you mean, e.g. to randomly assign papers to reviewers? So say you have 2000 papers to review, you can randomly distribute the papers so that both reviewers have a random set of 1000 papers to review?
have a random number generator or a random citation generator from within a review - is second review only reviewing a proportion of citations would allow this to be truly random